@article{fdi:010055729,
  title = {{O}bservation of far-field {M}ach waves generated by the 2001 {K}okoxili supershear earthquake},
  author = {{V}all{\'e}e, {M}artin and {D}unham, {E}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}egional surface wave observations offer a powerful tool for determining source properties of large earthquakes, especially rupture velocity. {S}upershear ruptures, being faster than surface wave phase velocities, create far-field surface wave {M}ach cones along which waves from all sections of the fault arrive simultaneously and, over a sufficiently narrow frequency band, in phase. {W}e present the first observation of far-field {M}ach waves from the major {K}okoxili earthquake ({T}ibet, 2001/11/14, {M}-w 7.9) and confirm that ground motion amplitudes are indeed enhanced on the {M}ach cone. {T}heory predicts that on the {M}ach cone, bandpassed surface wave seismograms from a large supershear rupture will be identical to those from much smaller events with similar focal mechanisms, with an amplitude ratio equal to the ratio of the seismic moments of the two events. {C}ross-correlation of 15-25 s {L}ove waves from the {K}okoxili event with those from a much smaller ({M}w 5) foreshock indicates a high degree of similarity (correlation coefficients ranging from 0.8 to 0.95) in waveforms recorded at stations near the far-field {M}ach cone. {T}his similarity vanishes away from the {M}ach cone. {T}hese observations provide further evidence for supershear propagation of the {K}okoxili rupture, and demonstrate how this simple waveform correlation procedure can be used to identify supershear ruptures. {C}itation: {V}allee, {M}., and {E}. {M}. {D}unham (2012), {O}bservation of far-field {M}ach waves generated by the 2001 {K}okoxili supershear earthquake, {G}eophys. {R}es. {L}ett., 39, {L}05311, doi: 10.1029/2011{GL}050725.},
  keywords = {},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {39},
  numero = {},
  pages = {{L}05311},
  ISSN = {0094-8276},
  year = {2012},
  DOI = {10.1029/2011gl050725},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055729},
}